Should a subset of member states of a federation be allowed to form a sub-union on some policy issue? When centralization is not politically feasible, allowing an enhanced cooperation agreement among a subset of countries permits the latter to gain benefits which would otherwise be lost....

We study convergence and divergence dynamics in a sample of EMU countries by assembling an extensive dataset that contains information on public spending and policy outcomes in a variety of areas of government intervention including education, health, and civil justice from the early 1990s. We...

Using data from a unique survey of members of parliaments in France, Germany and Italy in 2018, we estimate the effects of three dimensions on EU and euro area fiscal reform preferences: nationality, political ideology, and populism. We predict and confirm that a German populist party on the...